diff --git a/Shared/Models/UserDefaultsStore.swift b/Shared/Models/UserDefaultsStore.swift
index 407a4dd..e36fbe6 100644
--- a/Shared/Models/UserDefaultsStore.swift
+++ b/Shared/Models/UserDefaultsStore.swift
@@ -16,6 +16,7 @@ class UserDefaultsStore {
         case mainViewTopHeaderIndex
         case theme
         
+        case contentViewCurrentSelectedHeaderViewBackDays
         case contentViewHeaderTag
         case contentViewHeaderTagViewOneViewType
         case contentViewHeaderTagViewTwoViewType
diff --git a/Shared/views/ContentView.swift b/Shared/views/ContentView.swift
index 076f49c..01a48ec 100644
--- a/Shared/views/ContentView.swift
+++ b/Shared/views/ContentView.swift
@@ -24,7 +24,7 @@ struct ContentView: View {
     @AppStorage(UserDefaultsStore.Keys.theme.rawValue, store: GroupUserDefaults.groupDefaults) private var theme: Theme = .system
     
     // MARK: top header storage
-    @AppStorage(UserDefaultsStore.Keys.theme.rawValue, store: GroupUserDefaults.groupDefaults) private var currentSelectedHeaderViewBackDays: Int = 30
+    @AppStorage(UserDefaultsStore.Keys.contentViewCurrentSelectedHeaderViewBackDays.rawValue, store: GroupUserDefaults.groupDefaults) private var currentSelectedHeaderViewBackDays: Int = 30
     @AppStorage(UserDefaultsStore.Keys.contentViewHeaderTagViewOneViewType.rawValue, store: GroupUserDefaults.groupDefaults) private var firstSwichableHeaderViewType: MainSwitchableViewType = .total
     @AppStorage(UserDefaultsStore.Keys.contentViewHeaderTagViewTwoViewType.rawValue, store: GroupUserDefaults.groupDefaults) private var secondSwichableHeaderViewType: MainSwitchableViewType = .total
     @AppStorage(UserDefaultsStore.Keys.contentViewHeaderTag.rawValue, store: GroupUserDefaults.groupDefaults) private var switchableViewSelectedIndex = 1